If the first plants you think of when you hear "cactus" are those immense, multi-branched Saguaro cactuses (Carnegiea gigantea) so frequently featured in cowboy movies, you should know there are over ...

Towering structures must be able to bend and sway when subjected to the forces of wind and ground movement, or they will topple, whether it's a building, a geological formation, tree—or even a cactus.

Towering structures must be able to bend and sway when subjected to the forces of wind and ground movement, or they will topple, whether it’s a building, a geological formation, tree—or even a cactus.